摘要
滇西北鲁甸花岗岩可分为 5个单元 ,归并为 2个序列。早期序列———拉美荣序列由窝窝底、格庄、五点石 3个单元组成 ,生成于早～中三叠世 ,为壳幔混源岩浆形成 ,属火山弧花岗岩 ,是金沙江结合带俯冲消减的产物。晚期序列———打米杵序列由阿竹生、哇甫莫 2个单元组成 ,生成于晚三叠世 ,为壳源花岗岩 ,形成于同碰撞环境 ,是金沙江结合带碰撞造山的物质记录。
The Ludian granite in northwest Yunnan can be divided into 5 units of 2 series. The Wowodi, Gezhuang and Wudianshi units of the earlier Lamerirong series were formed by crust and mantle magma in early middle Triassic. They belong to the volcanic are granite formed by the subduction of Jinshajiang conjunction zone. The Azhusheng and Wafumo units of the later Damichu series were formed by the crust derivation granite in late Triassic. They were formed in the collision orogeny environment of Jinshajiang conjunction zone.
出处
《云南地质》
2002年第4期365-377,共13页
Yunnan Geology
基金
中国地质调查局
1:2 5万中甸县幅区域地质调查
关键词
成因
就位机制
鲁甸花岗岩
云南
岩浆活动
Re division Unit
Mechanism of Genesis and Emplacement
Ludian Granite
Northwest Yunnan
